Category: 140-11-4

Takashina, Kazuki published the artcileSolid-phase total synthesis of Plusbacin A3, COA of Formula: C9H10O2, the main research area is Plusbacin A3 total solid phase synthesis antibacterial agent drug; Joullie Ugi three component diastereoselective.

The total synthesis of the depsipeptide natural product plusbacin A3 utilizing solid-phase peptide synthesis (SPPS) was disclosed. A 3-hydroxy-proline derivative compatible with Fmoc (Fmoc = 9-fluorenylmethoxycaarbonyl) SPPS was prepared by a diastereoselective Joullie-Ugi three-component reaction (JU-3CR)/hydrolysis sequence. After peptide elongation on the solid support, cleavage of the peptide from the resin, followed by macrolactamization and global deprotection, gave plusbacin A3.

Organic Letters published new progress about Allylic alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, COA of Formula: C9H10O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Turhanen, Petri A. published the artcileGreen and Efficient Esterification Method Using Dried Dowex H+/NaI Approach, SDS of cas: 140-11-4, the main research area is green esterification carboxylic acid alc; regioselective esterification hydrogen cation exchange resin sodium iodide catalyst.

The usefulness of dried Dowex H+ cation-exchange resin with or without sodium iodide (NaI) as a catalyst system for different kinds of esterifications using carboxylic acids and alcs. as starting materials has been systematically investigated. The Dowex H+/NaI approach is very effective, generally high yielding, energy-efficient, and nontoxic, and the Dowex H+ resin is reusable. Since the whole procedure from start to product isolation is also very simple, these features make the method environmentally friendly. The method is regioselective, and its potential for separation of valuable carboxylic acids like resin acids from mixtures containing other kinds of carboxylic acids has been demonstrated. Examples for green and straightforward esterification of highly important natural amino acids are also presented.

ACS Omega published new progress about Carboxylic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, SDS of cas: 140-11-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Mu, Yangxiu published the artcileAcid-catalyzed synthesis of pyrazolo[4,3-c]quinolines from (1H-pyrazol-5-yl)anilines and ethers via the cleavage of C-O bond, Recommanded Product: Benzyl acetate, the main research area is pyrazoloquinoline preparation; pyrazolylaniline ether cyclization carbon oxygen bond cleavage acid catalyst.

Acid-promoted the cyclization reaction for the synthesis of pyrazolo[4,3-c]quinolines from (1H-pyrazol-5-yl)anilines and ethers via the cleavage of C-O bond has been developed. This method exhibits the advantages of good functional group tolerance, simple reaction conditions and without addition of metal catalyst, providing novel products in moderate to good yields, which has potential applications in the organic, pharmaceutical chem.

Tetrahedron published new progress about Anilines Role: RCT (Reactant), RACT (Reactant or Reagent) (pyrazolyl). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Recommanded Product: Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Miura, Hiroki published the artcilePractical Synthesis of Allyl, Allenyl, and Benzyl Boronates through SN1′-Type Borylation under Heterogeneous Gold Catalysis, COA of Formula: C9H10O2, the main research area is allyl allenyl benzyl boronate preparation gold titanium dioxide; propargyl carbonate allylic benzylic ester borylation.

Efficient borylation of sp3 C-O bonds by supported Au catalysts is described. Au nanoparticles supported on TiO2 showed high activity under mild conditions employing low catalyst loading conditions without the aid of any additives, such as phosphine and bases. A variety of allyl, propargyl, and benzyl substrates participated in the heterogeneously catalyzed reactions to furnish the corresponding allyl, allenyl, and benzyl boronates in high yields. Besides, Au/TiO2 was also effective for the direct borylation of allylic and benzylic alcs. A mechanistic investigation based on a Hammett study and control experiments revealed that sp3 C-O bond borylation over supported Au catalysts proceeded through SN1′-type mechanism involving the formation of a carbocationic intermediate. The high activity, reusability, and environmental compatibility of the supported Au catalysts as well as the scalability of the reaction system enable the practical synthesis of valuable organoboron compounds

ACS Catalysis published new progress about Alkynes Role: RCT (Reactant), RACT (Reactant or Reagent) (carbonate). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, COA of Formula: C9H10O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Behera, Rakesh R. published the artcileHydrosilylation of Esters Catalyzed by Bisphosphine Manganese(I) Complex: Selective Transformation of Esters to Alcohols, Safety of Benzyl acetate, the main research area is alc diol preparation; Xantphos manganese complex preparation chemoselective hydrosilylation catalyst crystal structure; manganese catalyst chemoselective hydrosilylation ester.

A tricarbonylruthenium Xantphos complex I was prepared and characterized by X-ray crystallog.; in the presence of I, esters underwent chemoselective hydrosilylation with phenylsilane under neat conditions (followed by workup with base) to yield esters. Aryl, alkyl, and alkenyl mono- and dicarboxylates and lactones underwent chemoselective reduction to alcs. and diols; ketoesters underwent reduction to diols. Poly(1,6-hexanediol adipate) underwent hydrosilylation to 1,6-hexanediol.

Organic Letters published new progress about Aliphatic alcohols Role: SPN (Synthetic Preparation), PREP (Preparation). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Safety of Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chen, Yaoyao published the artcileBu4NI-Catalyzed C-C Bond Cleavage and Oxidative Esterification of Allyl Alcohols with Toluene Derivatives, Formula: C9H10O2, the main research area is arylpropenol toluene oxidative esterification tetrabutylammonium iodide catalyst; ester preparation.

A novel oxidative esterification of 1-arylprop-2-en-1-ols R1CH(OH)CH=CHR2 (R1 = Ph, 2-chlorophenyl, 4-bromophenyl, etc.; R2 = H, Me, 3-methoxyphenyl) with toluene derivatives ArMe (Ar = Ph, 3-chlorphenyl, 2-naphthyl, etc.) catalyzed by tetrabutylammonium iodide (TBAI) is reported. The optimization of the reaction conditions illustrates that each of experiment parameters including the catalyst, solvent, and oxidant is significant for present oxidative functionalization. This metal-free protocol has a broad substrate scope including the halogen groups for further functionalization and enriches the reactivity profile of allyl alc. and toluene derivatives In addition, this protocol represents a new transformation of allyl alc. involving C-C bond cleavage and C-O bond forming.

Synthesis published new progress about Allylic alcohols Role: RCT (Reactant), RACT (Reactant or Reagent) (aryl). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Formula: C9H10O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kar, Sayan published the artcileDehydrogenative ester synthesis from enol ethers and water with a ruthenium complex catalyzing two reactions in synergy, Related Products of esters-buliding-blocks, the main research area is ruthenium complex catalyst preparation ester synthesis; ester chemoselective dehydrogenative preparation mechanism; vinyl enol ether oxidation ruthenium complex catalyst mechanism; cyclic enol ether oxidation ruthenium complex catalyst mechanism.

The authors report the dehydrogenative synthesis of esters RO2CMe [R = Et, n-Bu, Bn, etc.] from enol ethers using water as the formal oxidant, catalyzed by a newly developed ruthenium acridine-based PNP(Ph)-type complex. Mechanistic experiments and d. functional theory (DFT) studies suggest that an inner-sphere stepwise coupled reaction pathway was operational instead of a more intuitive outer-sphere tandem hydration-dehydrogenation pathway.

Green Chemistry published new progress about Carboxylic esters Role: SPN (Synthetic Preparation), PREP (Preparation). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Related Products of esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Thenarukandiyil, Ranjeesh published the artcileHydroboration of Nitriles, Esters, and Carbonates Catalyzed by Simple Earth-Abundant Metal Triflate Salts, COA of Formula: C9H10O2, the main research area is hydroboration nitrile carbonate carboxylate preparation amine diol borate ester; manganese triflate catalyst hydroboration nitrile carbonate carboxylate; Carbonates and Esters; Earth-Abundant Metals; Hydroboration; Manganese; Nitriles.

Amine, glycol and alc. borate derivatives ArCH2N(Bpin)2, (pinB)OXO(Bpin) and ROBpin were prepared by manganese(II) triflate-catalyzed hydroboration of aromatic nitriles, cyclic carbonates and carboxylic esters with pinacolborane HBpin. During the past decade earth-abundant metals have become increasingly important in homogeneous catalysis. One of the reactions in which earth-abundant metals have found important applications is the hydroboration of unsaturated C-C and C-X bonds (X=O or N). Within these set of transformations, the hydroboration of challenging substrates such as nitriles, carbonates and esters still remain difficult and often relies on elaborate ligand designs and highly reactive catalysts (e. g., metal alkyls/hydrides). Here we report an effective methodol. for the hydroboration of challenging CN and C:O bonds that is simple and applicable to a wide set of substrates. The methodol. is based on using a manganese(II) triflate salt that, in combination with com. available potassium tert-butoxide and pinacolborane, catalyzes the hydroboration of nitriles, carbonates, and esters at room temperature and with near quant. yields in less than three hours. Addnl. studies demonstrated that other earth-abundant metal triflate salts can facilitate this reaction as well, which is further discussed in this report.

Chemistry – An Asian Journal published new progress about Borates Role: SPN (Synthetic Preparation), PREP (Preparation) (esters). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, COA of Formula: C9H10O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sun, Yingnan published the artcileIn Situ Approach to Dendritic Fibrous Nitrogen-Doped Carbon Nanospheres Functionalized by Bronsted Acidic Ionic Liquid and Their Excellent Esterification Catalytic Performance, Safety of Benzyl acetate, the main research area is bronsted acidic ionic liquid dendritic fibrous nanocarbon esterification.

Chem. bonding of Bronsted acidic ionic liquids (BAILs) on suitable supports is one of the promising strategies to develop efficient solid acids for catalytic conversion of biomass/derivatives to fuels and value-added chems. For this purpose, a series of dendritic fibrous nitrogen-doped carbon nanospheres functionalized by BAILs are demonstrated for the first time via an in situ silica nanocasting approach followed by chem. modification with 1,3-propanesultone and trifluoromethanesulonic acid successively. The resulting DFNC-[C3N][OTf] (C3 = PrSO3H, OTf = SO3CF3) serve as the solid acid catalysts for three biomass conversion-concerned esterification reactions, and by the combination of the advantages of superstrong Bronsted acidity, fascinating dendritic fibrous nanostructures, and interesting hierarchical micro-mesoporosity, the DFNC-[C3N][OTf] catalysts exhibit excellent esterification activity. More importantly, the cooperation of chem. bonding the -[C3][OTf-] sites on the dendritic fibrous nitrogen-doped carbon (DFNC) support and stabilizing the -[C3][OTf-] sites within the wrinkled fibers of the support result in the DFNC-[C3N][OTf] catalysts’ excellent reusability, and they can be reused at least five times without obvious changes in catalytic activity, nanostructures, porosity properties, and Bronsted acidity.

ACS Sustainable Chemistry & Engineering published new progress about Bronsted acids Role: CAT (Catalyst Use), PRP (Properties), USES (Uses). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Safety of Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ghamry, Mohamed published the artcileA metabolomics comparison of Lactobacillus communities isolated from breast milk and camel milk and Lactobacillus apis isolated from bee gut during cereals-based fermentation vs. Lactobacillus plantarum as a reference, Safety of Benzyl acetate, the main research area is Lactobacillus apis bee breast camel milk metabolomics cereal fermentation.

New and unconventional sources of probiotics may provide unique health efficacy by producing healthy, bioactive compounds The current study evaluates the fermentation efficiency and intrinsic effects on the bioactive substances produced by Lactobacillus apis (L. apis) as a novel strain isolated from the bumblebee gut, two different isolated Lactobacillus communities from breast milk (L.BM) and camel milk (L.CM). Lactobacillus plantarum (L. plantarum) was used as a reference during rice and oats fermentation The obtained results indicated that L.BM and L. CM treatments gave the highest production of phenolics and flavonoids values for different substrates and had the highest impact on the antioxidant capacity. All treatments demonstrated the ability to improve protein quality and properties significantly as compared to non-fermented flours. The best patterns were obtained with L.BM, followed by L. apis and L.CM compared with L. plantarum and non-fermented rice samples. The L.BM and L. apis showed a significant enhancement of volatile components in fermented rice, while L. CM displayed a pronounced effect on volatile production among oats treatments.

LWT–Food Science and Technology published new progress about Acids Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Safety of Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics